ET-8 Series Manual Wall Mount: 8, 16, 24, 32 Stations Pedestal Ultimo: 8, 16, 24, 32, 40, 48 Stations

ET-8 Series Manual Wall Mount: 8, 16, 24, 32 Stations Pedestal Ultimo: 8, 16, 24, 32, 40, 48 Stations

Table of Contents 1 ET-8 SERIES QUICK SETUP GUIDE... 3 2 INSTALLATION... 4 2.1 Wall Mount Mounting Instructions... 4 2.2 Wiring Instructions... 4 2.3 Multiple Controller & Single Valve/Pump... 5 3 BASIC PROGRAMMING... 6 3.1 Date & Time... 6 3.2 Watering Days... 6 3.3 Watering Times... 7 3.4 Station Run Times... 7 3.5 Region... 8 4 RUN MODE... 9 4.1 Default Display... 9 4.2 Rain Indicator... 9 4.3 Temperature Indicator... 9 4.4 Two Minute Test... 9 4.5 Rain Delay... 10 4.6 Station Run Time Info... 10 4.7 Flow & Electrical Faults... 10 5 MANUAL IRRIGATION... 11 6 OFF MODE... 11 7 ADVANCED FEATURES... 12 7.1 Water Reduction... 12 7.2 Accumulate... 12 7.3 Cycle & Soak... 12 7.4 Master Valves... 13 7.5 Program Overlap... 13 7.6 Establishment... 14 7.7 Number of Stations... 14 8 FLOW MONITORING... 15 8.1 Flow Monitoring Basics... 15 8.2 Flow Calibration... 15 8.3 Flow Stabilization... 16 8.4 Flow Break Level... 16 8.5 Station Low Flow Monitoring... 16 8.6 Station High Flow Monitoring... 17 8.7 Station Flow Rates... 17 8.8 Learn Flow... 17 9 HISTORY & FAULTS... 18 9.1 Basic History... 18 9.2 Extended History... 18 10 IRRIGATION ACTIVITY MONITOR... 19 10.1 Electrical Over-Current Fault... 19 11 SMART OPERATION... 20 11.1 Evapotranspiration (ET)... 20 12 TECHNICAL INFORMATION... 21 12.1 Troubleshooting Guide... 21 12.2 Technical Specification... 21 12.3 Warranty Information... 22 2

1 ET-8 Series Quick Setup Guide Setting the Date & Time 1. Turn the knob to Date & Time. 2. Press Previous/Next to select month, day, year, hour or minute. 3. Press More/Less to set the value. Setting the Watering Days 1. Turn the knob to Water Days. 2. Press More/Less until the desired program is selected, then, press Next. 3. Press More/Less until the desired schedule appears, one of: off, odd, even, weekly or skip days. 4. If selecting weekly (S.M.T.W.T.F.S), press Next to select a day and More/Less to enable/disable watering on that day. Setting the Watering Times 1. Turn the knob to Water Times. 2. Press More/Less until the desired program is selected. 3. Press Next until one of the four start times is selected. 4. Press More/Less to change the selected field (hour or minute). 5. To disable a start time, increment its start hour (past midnight) until --:-- appears. Setting Station Run Times 1. Turn the knob to Station Run Times. 2. Press More/Less until the desired station is selected. 3. Press Next until one of the four programs (A-D) is selected. 4. Press More/Less to set the desired running time. Set the Controller for summer run times only! Running a Two Minute Test 1. Ensure the dial is in Run position. 2. Press More. 3. Press Next to start the test or Previous to cancel. 4. During the test, use Next/Previous to skip to the next or previous station. 5. To stop, turn the knob to Off. Setting Rain Delay 1. Ensure the dial is in Run position. 2. Press Less. 3. Press More/Less until the desired number of rain days is selected. 4. Press Next to save the value and return or Previous to cancel. Determine Today s Run Time Adjustment 1. Ensure the dial is in Run position. 2. Press Previous and the display will show today s adjustment as a percentage of the set run times. 3. The display returns to normal after a short delay. Viewing & Clearing Faults 1. Ensure the dial is in Run position. 2. Press Next and the display will show BRK (Main Line Break), LFL (Low Flow), HFL (High Flow), CRNT (Over Current), or all clear. 3. The display returns to normal after a short delay. 3

2 Installation **** Do not connect more than one controller to a shared pump, master valve, flow meter, rain sensor, or irrigation valve. Interconnecting controller transformers is a violation of National Electric Code. This controller must be installed in compliance with local electrical codes. Make sure all power is off during installation and wiring process. **** 2.1 Wall Mount Mounting Instructions If you are replacing an existing controller, it is a good idea to attach a piece of label to each wire as you remove them from your existing controller. This will make the job of installing your new controller easier. If you are using the drywall anchors and the mounting template which is provided in your package, use a ¼ drill bit to drill the 3 holes. Then insert the drywall anchor until it is flush with the wall surface. Insert 2 screws into the top 2 drywall anchors leaving the screw heads about ¼ from being flush with the drywall. Hang the controller on the screws on top. Insert the third screw into the third hole and tighten until the screw head is flush with the controller. Seal around the box using silicone sealant. 2.2 Wiring Instructions Connect the common, stations, and master valve(s) wires. Connect the power line s black, white, and green (ground) wires to the transformer s black, white, and green wires. Tighten the wires together using the supplied wire nuts. Connect the Rain/Temperature Sensor and optional equipment as shown in the following figure. Apply main power. Leave Disconnected 24 VAC Transformer GND 110 VAC Main Power RTS OR MODEM RED BLK Flow Meter Must have a jumper unless installing a normally-closed rain sensor. Optional Equipment Aqua Conserve Alarm Kit Connect these to your irrigation valves. Maximum of two valves per output. 4

2.3 Multiple Controller & Single Valve/Pump The drawing below may be used when a master valve or pump start is installed with multiple controllers, without looping the common wire between the controllers. Interconnecting controller transformers is a violation of National Electric Code. Each controller is connected to its own dedicated relay. The controller's master valve circuit is used to energize the relay. When the relay s contacts are closed, it allows the voltage from the additional transformer to activate the pump start and/or master valve. One side of the transformer voltage is supplied directly to the pump start and/or master valve and is used as the common. The other side of the transformer voltage is connected to terminals 7 & 9 on the relay. When the relay is activated by the controller, the transformer voltage is fed to contacts 4 & 6 respectively. Using both sets of contacts allows the controllers to turn on the pump start, master valve or both. Component: 1 x Relay per controller (24VAC/10Amp DPDT) -- Mfr. Part#: R10-11A10-24 or RR2BA-U- AC24 Component: 1 x Socket per controller (11-Pin) -- Mfr. Part#: R95-105 Component: 1 x Transformer (110 VAC/24VAC) -- Mfr. Part#: T40-24F1 The ideal location for the transformer/relay is close to the controllers or inside one controller. Remember there must be a 117 VAC power source available. The relays and transformer should be installed in a NEMA approved enclosure. This will protect the components from weather damage and vandalism. For ease of installation, it is recommended that relay sockets are used. The sockets have tabs for mounting purposes, and allow easy replacement of a defective relay. The drawing below details the terminal screw positions for the specified sockets. This is the top view of the socket. 5

3 Basic Programming 3.1 Date & Time Turn the dial to the Date & Time position. The controller displays the current date and time. Jan 01, 2008 12:00 AM Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. 3.2 Watering Days Turn the dial to the Water Days position. The controller displays a program (one of A, B, C, D, or E) and its watering schedule. A Off Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. You may use any of the programs A, B, C, and D for irrigation scheduling. However, program E is dedicated for the Establishment feature. Set a program s watering days to Off to suspend all irrigation activities, or Set a program s watering days to Odd to irrigate only on odd days of the month, or, A Runs Odd Days Set a program s watering days to Even to irrigate only on even days of the month, or, A Runs Even Days 6

Set a program s watering days by selecting the days of week that irrigation is to be suspended. To turn a day off, set its corresponding letter to -, or, A S.M.T.W.T.F.S Set a program s watering days by specifying the number of skip (i.e., off) days and today s position in the cycle. For example, a skip value of 3 (as shown) specifies one watering day followed by 3 no-watering days. The cycle value specifies that today is an irrigation day (IR). You can change that to 1, 2, or 3, meaning, there 1, 2, or 3 more days of nowatering days remain. The cycle value is automatically decremented every midnight, repeating a pattern of 3, 2, 1, IR, 3, 2, 1, IR, etc. A Skp/Cycl: 03/IR 3.3 Watering Times Turn the dial to the Water Times position. The controller displays a program (one of A, B, C, D, or E) and its four watering start times. 01 07:00A --:-- --:-- --:-- Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. To turn a start time off, continuously increment its hour until --:-- is displayed. 3.4 Station Run Times Turn the dial to the Station Run Times position. The controller displays a station and its station run times, in minutes, on programs A, B, C and D. 01 A) 005 B) --- C) --- D) --- Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. Set the station run times for the average summer high. The controller will make automatic seasonal and weather adjustments. 7

3.5 Region Turn the dial to the General Settings position. The controller will display Region. Use the More or Less buttons to set the appropriate region number: Region: 01 01: Southern California Inland to Desert 02: California Low Desert 03: California Central Valley 04. Northern CA Inland to Central Valley 05. California High Desert 06: California Coastal 11: Phoenix Arizona 16: Reno Nevada 17: Las Vegas Nevada 21: Denver Colorado 22: Northern Colorado 26: Albuquerque New Mexico 27: Las Cruces New Mexico 31: Seattle Washington 41: Logan Utah 51: San Antonio Texas 52: Dallas / Fort Worth Texas For additional region information, go to: www.aquaconserve.com 8

4 Run Mode 4.1 Default Display Leave the dial in the Run position for normal operation. In this mode, the controller displays the current date and time. Jan 01, 2008 12:00 AM For normal irrigation activities to take place, the dial must be in the Run position. When power is first applied to the controller, or after a power failure, the display will be flashing, indicating that the date and time should be set. 4.2 Rain Indicator If a rain signal is received from an attached rain sensor, the controller will display RAIN. All irrigation activities are suspended while RAIN is displayed. Jan 01, 2008 12:00 AM RAIN The controller will revert back to normal operation 24 hours after the rain sensor has completely dried. The controller displays RAIN for the number of days a rain delay is entered by the user. 4.3 Temperature Indicator If a temperature sensor is attached, the controller will display the current temperature reading. Jan 01, 2008 12:00 AM 72 F Unless a more accurate source of weather information is available (e.g., via an attached modem), the controller will use the daily average temperature to adjust the watering run times. Please refer to the temperature sensor s manual for correct installation of the temperature sensor. 4.4 Two Minute Test Press the More button to enter the Two Min Test screen. Then, press Next to start or Previous to cancel the test. Two Min Test Cancel Run Once the test is started, you may press the Next or Previous buttons to skip to the next or previous station. Turn the dial to the Off position to terminate the test. 9

4.5 Rain Delay Rain delay is used to manually disable the controller, for up to 9 days, when rain is expected. Rain Del. 0 Days Cancel Run To manually enter the number of days of rain delay, press the Less button. Then, use the More or Less buttons to set the days. When done, press the Next button to store the value or press the Previous button to cancel. If a nonzero rain delay value is entered, the controller will display RAIN and suspend all irrigation activities. You will not be able to clear the rain delay value if an attached rain sensor is sending a rain signal. 4.6 Station Run Time Info Press the Previous button to view the adjustment applicable to today s watering times. Today Stns Run 27% of Set Min For example, and using the illustration to the right, a station that is programmed for 10 minutes will irrigate for 2.7 minutes today. 4.7 Flow & Electrical Faults Press the Next button to view flow & electrical faults that may have been sets. FAULTS ALL CLEAR! When irrigating, the controller continuously checks for excessive electrical current draw and anomalies. If an over current condition is detected, the controller sets the CRNT fault. When irrigating, the controller can be programmed to monitor for excessive water flow and detect a line break condition. If a line break condition is detected, the controller sets the BRK fault. The controller can be programmed to monitor for low or high flow conditions on a per station basis. If a low or high flow condition is detected, the controller sets the LFL or HFL faults. If no faults are set, ALL CLEAR! is displayed. All faults are cleared once viewed on this screen. 10

5 Manual Irrigation Turn the dial to the Manual position to setup a manual irrigation run. You have a number of choices for manual irrigation. Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. St: --- Prg: --- Time: -- Minutes Single station: set the value next to St to the desired station number and the value next to Time to the desired run time. Turn the dial to Run to begin. All stations: set the value next to St to All and the value next to Time to the desired run time. Turn the dial to Run to begin. Single program: set the value next to Prg to the desired program letter. Turn the dial to Run to begin. The controller will run this program for the set run times. All programs: set the value next to Prg to All. Turn the dial to Run to begin. The controller will run all programs for the set run times. 6 Off Mode Turn the dial to the Off position to disable all irrigation activities. All controller features, including optional communications package functionality, are disabled in this mode. Controller Off RXXXXXX/XX The second row of the display shows the firmware revision of the controller. Be prepared to provide this text when calling Aqua Conserve customer support. 11

7 Advanced Features 7.1 Water Reduction Water reduction is a global setting to reduce all station run times by a single factor. The value that is displayed shows the percentage of the station run times that the controller will use. Water Reduction: 90% Turn the dial to the General Settings position. Then, continuously press the Next button until Water Reduction is displayed. Use the More or Less buttons to set the water reduction percentage. You may set the percentage to 100% (no reduction) down to 75% (25% reduction). The factory default is 90%. 7.2 Accumulate The accumulate feature is beneficial during the cooler fall or winter seasons, as it keeps the stations from irrigating frequently for just short periods of time. Accumulate: Off Turn the dial to the General Settings position. Then, continuously press the Next button until Accumulate is displayed. Use the More or Less buttons to turn the feature on or off. If accumulate is enabled, the controller will suspend a station s scheduled irrigation for as long as its seasonally and weather adjusted run time is less than ½ of the set run time. The unirrigated run time is accumulated and accounted for during future scheduled irrigation cycles. 7.3 Cycle & Soak The cycle and soak method of watering allows water to absorb into the ground, thus eliminating water runoffs. 01 Cycle: 05 Soak: 15 Turn the dial to the Station Cycle & Soak position. The controller displays a station and its cycle & soak times in minutes. Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. A station that has been programmed with cycle and soak times irrigates in an on/off pattern, as determined by the cycle/soak times. 12

While a station is in its soak cycle, the controller skips to the next station in the sequence, returning to the earlier station when its soak time has been completed. Cycl/Soak First: Yes When using cycle and soak, you can shorten the total irrigation window by forcing the stations that are set for cycle and soak to irrigate ahead of non cycle and soak stations. To do so, turn the dial to the General Settings position. Then, continuously press the Next button until Cycl/Soak First is displayed. Use the More or Less buttons to enable or disable this feature. 7.4 Master Valves If enabled, the master valve outputs switch on when the station is irrigating. 01 MV1:Y MV2:N E) --- Days: -- Turn the dial to the Station Settings position. The controller displays a station and its associated master valve settings on the first line. Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. This controller has two dedicated master valve outputs. For each station, you may individually enable (Y) or disable (N) master valve 1 or master valve 2 outputs. 7.5 Program Overlap If program overlap is set to 2, 3, or 4, the controller will overlap the activation of 2, 3, or 4 programs. Specifically, the controller will simultaneously activate multiple stations (one from each overlapping program). Program Overlap: Off Turn the dial to the General Settings position. Then, continuously press the Next button until Program Overlap is displayed. Use the More or Less buttons to turn the feature on or off. If this feature is turned off, the controller will stack the activation of overlapping programs. Specifically, the controller will activate overlapping programs according to the following ordering: A, B, C, then, D. 13

7.6 Establishment Use establishment to schedule a program that is not subject to automatic seasonal adjustments. 01 MV1:Y MV2:N E) --- Days: -- Turn the dial to the Station Settings position. The controller displays a station and its associated establishment settings on the second line. Adjust the flashing field using the More or Less buttons and move to another field using the Previous or Next buttons. Set the establishment run time, in minutes, on program E. Then, set the number of establishment days. Ensure that program E has watering days and watering times set to the desired values. The controller will irrigate this station according to its establishment settings and for the set number of establishment days. The number of establishment days will be decremented daily. Once the number reaches 00, the controller reverts back to normal program A through D operation and disables establishment mode. While in establishment mode, a station s irrigation activities, set on programs A through D, will be suspended. Remember that the establishment run times on program E are not subject to automatic seasonal and weather adjustments. 7.7 Number of Stations Turn the dial to the General Settings position. Then, continuously press the Next button until # Stations is displayed. Use the More or Less buttons to set the number of stations. # Stations: 32 Your controller was manufactured as an 8 to 48 station irrigation controller. The number of stations setting should be set to reflect the physical number of stations available on the unit. This parameter is set at factory prior to shipping the unit. 14

8 Flow Monitoring 8.1 Flow Monitoring Basics The goal in programming a controller for flow monitoring is to detect flow anomalies while avoiding false alarms. False alarms, especially station high flow and flow break monitoring, if programmed incorrectly, can prevent a station from irrigating. Here are some recommendations: Make certain the flow meter is properly installed and wired to the controller. Monitor the actual flow rate reading during irrigation activity and ensure that the flow rate indicated on the controller is reasonable. Make certain the flow stabilization parameter is set for a long enough duration to allow for the flow to reach a steady rate once a station is activated. You must set the flow rate of each station for low/high flow monitoring. You can accomplish this automatically or manually. Regardless of the method, ensure that these values are set properly. You should set the low/high flow percentage wide enough to avoid false alarms. A good strategy is to start with a large percentage and narrow the values down gradually. Narrow settings allow for higher accuracy, while wider settings avoid false alarms. Make sure to perform frequent and regular checks to ensure that the controller is functioning correctly. 8.2 Flow Calibration Turn the dial to the General Settings position. Then, continuously press the Next button until Flow Calib is displayed. Use the More or Less buttons to set the appropriate flow calibration parameter. Flow Calib: 02.7 ---.- GPM The flow calibration parameter is supplied by your flow-meter manufacturer. The Flow Calib screen also shows the current flow rate in gallons per minute (GPM). Common Data Industrial flow meter calibration parameter is given below: Model Pipe Size Calib. Param. 228PV15 1.5 01.7 228PV20 2.0 02.9 228PV30 3.0 08.3 228PV40 4.0 13.7 15

8.3 Flow Stabilization Flow stabilization delay is necessary to allow the irrigation system to reach a steady flow rate before monitoring begins. Flow Stablize: 015 Sec Turn the dial to the General Settings position. Then, continuously press the Next button until Flow Stabilize is displayed. Use the More or Less buttons to set the appropriate flow stabilization parameter. The flow stabilization parameter defines the duration of time after a station is first activated, when flow monitoring is started. 8.4 Flow Break Level Turn the dial to the General Settings position. Then, continuously press the Next button until Flow Break Lvl is displayed. Use the More or Less buttons to set the appropriate flow break level, or disable the feature. Flow Break Lvl: 0010 GPM When set, the controller monitors the flow rate during irrigation. If the flow rate exceeds the flow break level, the controller stops all irrigation activities and sets the BRK flag. Subsequently scheduled programs will execute by the controller as scheduled. These subsequent irrigations will be subject to flow break monitoring and may be interrupted if the high flow condition persists. See Section 4.7 for checking and clearing faults. 8.5 Station Low Flow Monitoring Turn the dial to the General Settings position. Then, continuously press the Next button until Flow Mon Lo Lvl is displayed. Use the More or Less buttons to set the appropriate station low flow monitoring percentage. Flow Mon Lo Lvl: 25% When set, the controller compares the actual flow rate of the active station against the station s set flow rate. If the actual flow rate is lower than the set flow rate by the low flow percentage, the controller sets the LFL flag. See Section 4.7 for checking/clearing faults and Section 9.1 for viewing recorded flow rates. Settings this percentage too low can cause frequent false alarms, but irrigation activity is not suspended on a low flow fault. 16

8.6 Station High Flow Monitoring Turn the dial to the General Settings position. Then, continuously press the Next button until Flow Mon Hi Lvl is displayed. Use the More or Less buttons to set the appropriate station high flow monitoring percentage. Flow Mon Hi Lvl: 25% When set, the controller compares the actual flow rate of the active station against the station s set flow rate. If the actual flow rate is higher than the set flow rate by the high flow percentage, the controller disables the active station, sets the HFL flag, and skips to the next station. See Section 4.7 for checking/clearing faults and Section 9.1 for viewing recorded flow rates. Settings this percentage too low can cause frequent false alarms. 8.7 Station Flow Rates Turn the dial to the Station Settings position. Then, continuously press the Next button until station set flow rate is displayed on the second row. 01 Flow: Disabled Use the More or Less buttons to set the station s flow rate. Set a station s flow rate to Disabled to disable high flow and low flow monitoring on that station. To set Disable, decrement the station s flow rate to 00.0 GPM. Set a station s flow rate to Learn to force that station s flow rate to be learned during the next irrigation cycle. To set Learn, decrement the station s flow rate one past Disabled. 8.8 Learn Flow Turn the dial to the General Settings position. Then, continuously press the Next button until Learn Flow? is displayed. Use the More or Less buttons to activate this feature. If activated, the display will show Yes. Turn the dial to Run position. The controller, on its next irrigation cycle, will learn the flow of all stations. Learn Flow? Yes You may follow up with a Two Minute Test of all stations, to expedite the learning process. Once completed, each station s set flow rate will be recorded based on measure flow rate. See Section 8.7 for manually setting station flow rates or viewing learned values. 17

9 History & Faults 9.1 Basic History Turn the dial to the History & Faults position to view station faults, historical run times, and flow rates. 01 Acum: ---:-- --- His: ---:-- Use the More or Less buttons to change the current station being displayed. The value next to His shows the total actual irrigation time, in minutes and seconds. This number gets cleared at midnight. The value next to Acum shows the accumulated irrigation time, in minutes and seconds. This field is applicable only if the Accumulation feature is enabled. The three dashes (---) may be set to one of L (low flow), H (high flow), or C (over current), if those faults have actually occurred. Press the Next button until the station flow rate is displayed. Continue to press Next to return to the previous station. The flow displayed here is the measured flow rate at the time of the most recent irrigation activity. 01 Flow: 023.5 GPM 9.2 Extended History Turn the dial to the Off position, then, press the Previous button. The display will show a record such as the one shown to the right. To exit, press Next. 01 01/01/08 AUTO S-- PA/2 Press More or Less buttons to cycle through the irrigation records in sequential order. The controller will record 85 of your recent irrigation activities. A record is one of: 2MINTST, REMOTE, SINGSTN (manual single station run), ALLSTN (manual all station run), SINGPRG (manual single program run), ALLPRG (manual all programs run), AUTO (automatic scheduled run). The display will also provide additional info, such as the date of the record, and the program letter (A through E), start time number (1 through 4), or station number (1 through 48). 18

10 Irrigation Activity Monitor When an irrigation cycle is started (using a remote control device, scheduled activation, or manual run), the display will switch to the screen shown to the right. On the display, you ll see the station that s currently active. S03 MV1/2 0.86 A 001:07 023.5 GPM The master valves that are active 1, 2, or both. The electrical current draw, in Amperes, of all active valves (including master valves). The amount of remaining time on the second row. The flow rate in gallons per minute (GPM). The current draw of a single good valve solenoid should be around 0.25 A. A number substantially less than this can indicate an open circuit. A number substantially above this can indicate an aging solenoid. Keep in mind that the displayed current is that of all active solenoids. For diagnostic purposes, you should ensure that a single solenoid is active prior to checking for electrical faults. 10.1 Electrical Over-Current Fault When an irrigation cycles is in progress, an electrical fault will cause the controller to disable the current station. OVER-CURRENT The display will show a message indicating that a fault just occurred. This message will remain on the display for a few seconds. The controller will then skip to the next station. Once the irrigation cycle completes and the controller returns to the main run display, a flashing message will indicate that a fault had occurred. Jan 01, 2008 *CHECK FAULTS* Refer to Section 4.7 for details on checking and clearing faults. Refer to Section 9 for details on checking individual station fault history. 19

11 Smart Operation 11.1 Evapotranspiration (ET) Your controller uses daily Evapotranspiration (ET) to make its adjustments to the run times. Evapotranspiration (ET) is the amount of moisture that evaporates from the soil and transpires from plants. Plant transpiration is the movement of moisture from the plant to the air through the tiny pores in the plant leaves. The ET value is the amount of water required to keep the plant healthy for that day. This water replaces the amounts lost due to evaporation and transpiration. ET is affected by temperature, humidity, wind, and sunlight. The following chart displays the typical ET values over a 12-month period and is expressed as percent of summer run-time minutes. Using the above chart as a guide, if you had entered 10 minutes as your summer run-time and it is the first week of February the controller will run for 1 minute. (10 minutes times 10%). All of the controller calculations are based on the summer run-times you programmed into the controller. The controller assumes that the run-times are for the summer months and uses that information to calculate the actual daily runtimes. 20

12 Technical Information 12.1 Troubleshooting Guide Problem Cause Solution Display is blank. No AC Power. Check supply circuit breaker. Check transformer. Check wiring. Display is frozen, buttons and dial do not respond. Power spike. Turn power off and on to the controller. Did not irrigate Accumulation is on. Skipping Days. Controller is off. Rain Delay is set. Normal operation, nothing is wrong. Normal operation when accumulation is on. Turn dial from to Run position. If display shows RAIN, controller will not irrigate. See Section 4.5. Irrigated less then entered minutes. Normal Operation. The controller will only run the entered minutes during the warm summer days. I turn the controller off, but the water does not turn off. Valve problem. Check irrigation valves. The controller is running, but water does not turn on. Watering starts at wrong time. Valve problem, irrigation system, or electrical faults. Multiple programs running at the same time. Controller clock is wrong. Check that water source is on. Check master valve. Check that valve is not manually turned off. Check electrical wirings. When Program Overlap (Section 7.5) is off, the controller will delay other active programs until the present cycle is completed. Check and adjust controller clock (Section 3.1). 12.2 Technical Specification Main Power: 110 VAC, 50/60 Hz. Maximum Load: 24 VAC, 50/60 Hz @ 1.6 A (4 typical valve solenoids). Maximum Load per Station: 24 VAC, 50/60 Hz @ 0.5 A (2 typical valve solenoids). Operating Temperature: 20 F 140 F. User Settings: stored internally to flash (maintained during extended power failures). Third-Party Rain Sensor: compatible with common normally-closed rain sensors. Rain/Temperature Sensor: compatible with Aqua Conserve Wired/Wireless RTS units. Flow Meter: compatible with Two- or Three-terminal flow meters. Communication: compatible with Aqua Conserve Communications Package. Master Valve: two fully programmable outputs. Alarm: one dedicated alarm output (energized when a flow or electrical fault is set). 21

12.3 Warranty Information All Aqua Conserve products are warranted for a period of three years from the date of first purchase. If a defect is discovered during the warranty period, Aqua Conserve will repair or replace, at its option, the product or the defective part. This warranty does not extend to repairs or replacements required as a result of an act of God, misuse, negligence, modification, or improper installation/maintenance of the product. This commitment to repair or replace is our sole and total warranty. We will not, under any circumstances, be liable for incidental or consequential damages, no matter how they occur. To initiate a warranty claim, first note the serial number of the product then call our Customer Service department at 951-352-3891. 22

Notes 23